Cheap Flights from San Antonio (SAT) to Boulder (WBU)

Popular airlines from San Antonio International Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal) cost?
Secure a cheap one-way flight or cheap return flight from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)?
The cheapest month to fly from SAT to WBU is , when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SAT to WBU flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)?
You'll have to catch a flight with a layover if you're traveling from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from SAT to WBU?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary depending on various factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)?
Choose a flight from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Boulder from San Antonio Intl. Airport (SAT)?
If you've booked a direct flight from San Antonio Intl. Airport (SAT) to Boulder, Denver Intl. Airport (DEN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal) last-minute?
Last-minute bookings from SAT to WBU are generally more expensive. For the best prices, start searching for flights early. That being said, if you're flexible with your travel dates, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a SAT to WBU flight and hotel package?
Opting for a SAT to WBU flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Choose from our impressive range of accommodations and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Boulder, CO (WBU-Boulder Municipal)?
Usually, it's possible to cancel or reschedule your SAT to WBU flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
San Antonio Intl.
Destination airport
Boulder Municipal
Distance
820 mi

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San Antonio to Boulder Flights

The cheapest times to fly from San Antonio to Boulder

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Antonio to Boulder are during the month of . You can find some of the cheapest flights from San Antonio to Boulder with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Antonio to Boulder

Sunday is one of the best days to book for cheap flights from San Antonio to Boulder: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Antonio to Boulder

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Antonio to Boulder in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Antonio to Boulder flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Antonio to Boulder airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Antonio to Boulder Flights

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*Available to One Key members.